MAZDA

Brand has a revolutionary new engine At Mazda, we believe that there is still ample room for further evolution of the internal combustion engine and that this technology has the potential to contribute in a major way to conservation of our global environment. Based on Mazda’s corporate vision of protecting our beautiful planet while enriching people’s lives through the “joy of driving,” we plan to continue on our ceaseless quest to develop the ideal combustion engine.
The company affirms what, it's not a rotary, although the company does have one of those in use to use a range-extending generator in electric cars. Instead it's the technology that Mazda calls Skyactiv-X, which is an original take on the concept known as Homogenous Charge Combustion Ignition, or HCCI.
The idea is to get a gasoline engine to work more like diesel, where compressed fuel ignites all at eleven rather than spreading away from spark, which is less efficient. Gas burns faster than diesel, however, and it's tough to control its ignition in this kind of engine. So, what Mazda was designing a high-compression (16: 1) engine that uses a small spark that goes off just before the fuel would auto-ignite, creating the extra pressure needed to set it off at the right moment.
The lean-running engine is also supercharged to pack as much air into it as possible and even more efficient burn, especially at full throttle, and Mazda has combined it with a mild-hybrid system that gives the powertrain an electric boost under acceleration. Fuel economy is improved by about 20 percent compared to conventional gas engine with the same displacement, which in this example is 2.0-liters.
Unfortunately, American customers will have to wait a little longer to get a Mazda 3 equipped with Skyactiv-X, which is launching first in overseas markets while 2.5-liter will be the first engine available when the car goes on sale here next spring. Gary Gastelu